Halo

On the run and out of options, Kwan and Soren have a difference of opinion. With the possibility of finding the mysterious Halo on everyone’s minds, John makes a horrible discovery. And the war rears its ugly head.

Survivors from battle return to Reach. John confronts Dr. Halsey, and the lies of his past. The new prisoner seems to know John better than he knows himself. Determined to understand more, John turns back to the mystery artifact, which shows him something truly startling.

Kwan’s journey to uncover her family’s “true purpose” takes her deep into the deserts of Madrigal. Soren obsesses over unfinished business.

John and Makee come to terms with their shared vision. Halsey has one last chance to save her mission, and herself. As things come to a head, everyone must choose a side.

Beaten, battered, and betrayed, John 117 leads the Spartans on a suicide mission to find the Halo and save humanity. But at what price?

A deadly evacuation mission signals a shift in Master Chief’s war with the Covenant. On Reach, a new regime takes the reins at FLEETCOM. John senses a looming threat close to home. Season premiere.

John pushes Silver Team to its limit as he searches for missing Spartans. Kai worries about John's stability. Kwan finds the Rubble is a far more dangerous place in Soren's absence. Halsey seeks the identity of her captor.

John and Silver Team embark on an unsanctioned mission. Laera, Kwan and Kessler must escape Soren’s mutinous crew. Ackerson receives troubling intelligence from Cortana. The threat of an attack forces Ackerson to make an irrevocable decision.

A Covenant assault threatens humanity’s most important stronghold. John, Perez and Silver Team fight an overwhelming enemy. Adm. Keyes rallies the UNSC forces to make a stand. Halsey and Soren must work together to escape captivity.

In the aftermath of defeat, the survivors struggle to pick up the pieces. On the desolate planet of Aleria, John grapples with an unprecedented loss. Soren and Laera search for their missing son. Makee treads carefully as the Arbiter grows impatient.

John seeks revenge on a secret ONI planet. Perez trains to become a new kind of soldier. Kai finds herself torn between her Spartan code and her loyalty to Master Chief. Makee turns to Cortana for help in her search for the Halo.